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[CLOUDSTACK-9793] Faster IP in subnet checkThis change removes the conversion from IPNetwork to list in one of the router scripts. This makes the router faster at processing static NAT rules, which can prevent timeouts when attaching or detaching IPs. With the `list` conversion, it has to potentially check a list of 65536 IP strings multiple times. We assume that the comparison implemented in the IPNetwork is far more efficient. We have seen speed-up from 218 seconds to enable static NAT with 18 IPs on the router to 2 or 3 seconds by removing this cast. This also fixes a potential bug where adding IPs to a router time out because the scripts are taking too long. 218 seconds, for example, is beyond the timeout on the KVM agent for script execution, and then all enableStaticNat operations will fail. * pr/1948: CLOUDSTACK-9793: Faster ip in subnet check Signed-off-by: Rajani Karuturi <rajani.karuturi@accelerite.com>
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Note there is a new systemvm build script based on
Veewee(Vagrant) under tools/appliance.
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1. The buildsystemvm.sh script builds a 32-bit system vm disk based on the Debian Squeeze distro. This system vm can boot on any hypervisor thanks to the pvops support in the kernel. It is fully automated
2. The files under config/ are the specific tweaks to the default Debian configuration that are required for CloudStack operation.
3. The variables at the top of the buildsystemvm.sh script can be customized:
IMAGENAME=systemvm # dont touch this
LOCATION=/var/lib/images/systemvm #
MOUNTPOINT=/mnt/$IMAGENAME/ # this is where the image is mounted on your host while the vm image is built
IMAGELOC=$LOCATION/$IMAGENAME.img
PASSWORD=password # password for the vm
APT_PROXY= #you can put in an APT cacher such as apt-cacher-ng
HOSTNAME=systemvm # dont touch this
SIZE=2000 # dont touch this for now
DEBIAN_MIRROR=ftp.us.debian.org/debian
MINIMIZE=true # if this is true, a lot of docs, fonts, locales and apt cache is wiped out
4. The systemvm includes the (non-free) Sun JRE. You can put in the standard debian jre-headless package instead but it pulls in X and bloats the image.
5. You need to be 'root' to run the buildsystemvm.sh script
6. The image is a raw image. You can run the convert.sh tool to produce images suitable for Citrix Xenserver, VMWare and KVM.
* Conversion to Citrix Xenserver VHD format requires the vhd-util tool. You can use the
-- checked in config/bin/vhd-util) OR
-- build the vhd-util tool yourself as follows:
a. The xen repository has a tool called vhd-util that compiles and runs on any linux system (http://xenbits.xensource.com/xen-4.0-testing.hg?file/8e8dd38374e9/tools/blktap2/vhd/ or full Xen source at http://www.xen.org/products/xen_source.html).
b. Apply this patch: http://lists.xensource.com/archives/cgi-bin/mesg.cgi?a=xen-devel&i=006101cb22f6%242004dd40%24600e97c0%24%40zhuo%40cloudex.cn.
c. Build the vhd-util tool
cd tools/blktap2
make
sudo make install
* Conversion to ova (VMWare) requires the ovf tool, available from
http://communities.vmware.com/community/vmtn/server/vsphere/automationtools/ovf
* Conversion to QCOW2 requires qemu-img